I’m not aware of a slider that has that feature. Doesn’t mean it’s not out there – just haven’t come across it. If it were me, I’d try talking the client out of it for reason that people’s attention spans are limited and by the time the content fades in, a visitor’s eyes have probably moved on.

And you can do it with Nivo slider, but I couldn’t find a demo. I’m sure I can find another slider to do the trick, but the site is already set up with the Genesis Responsive Slider, so I was hoping for a quick fix.